Home / 10,689.30-16,009.65-6,752.70

Finding the Fourth Proportional to 10,689.30, 16,009.65 and 6,752.70

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Solution

The fourth proportional to 10,689.30, 16,009.65 and 6,752.70 is: 10,113.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,689.30 : 16,009.65 = 6,752.70 : x
  2. Step 2: Convert to fraction form
    10,689.30/16,009.65 = 6,752.70/x
  3. Step 3: Cross multiply
    10,689.30x = 16,009.65 × 6,752.70
  4. Step 4: Simplify right side
    10,689.30x = 108,108,363.56
  5. Step 5: Solve for x
    x = 108,108,363.56/10,689.30
  6. Step 6: Final answer
    x = 10,113.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.